/**
 * Copyright (C) 2013 DaiKit.com - daikit4gxt-sample module (admin@daikit.com)
 *
 *         Project home : http://code.daikit.com/commons
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *         http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
package com.daikit.daikit4gxtsample.server.filter;

import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import javax.servlet.http.HttpSession;


/**
 * Registry to access statically current {@link HttpServletRequest} and {@link HttpServletResponse} from anywhere
 * 
 * @author tcaselli
 * @version $Revision$ Last modifier: $Author$ Last commit: $Date$
 */
public class Registry
{

	private static final ThreadLocal<HttpServletRequest> currentRequest = new ThreadLocal<HttpServletRequest>();
	private static final ThreadLocal<HttpServletResponse> currentResponse = new ThreadLocal<HttpServletResponse>();

	// *-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-
	// GETTERS
	// *-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-

	/**
	 * @return the current {@link HttpServletRequest}
	 */
	public static final HttpServletRequest getRequest()
	{
		return currentRequest.get();
	}

	/**
	 * @return the current {@link HttpServletResponse}
	 */
	public static final HttpServletResponse getResponse()
	{
		return currentResponse.get();
	}

	/**
	 * @return the current request {@link HttpSession}
	 */
	public static final HttpSession getSession()
	{
		return currentRequest.get().getSession();
	}

	// *-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-
	// SETTERS
	// *-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-

	/**
	 * @param request
	 *           the current {@link HttpServletRequest} to set
	 */
	public static final void _setRequest(final HttpServletRequest request)
	{
		currentRequest.set(request);
	}

	/**
	 * @param response
	 *           the current {@link HttpServletResponse} to set
	 */
	public static final void _setResponse(final HttpServletResponse response)
	{
		currentResponse.set(response);
	}

}
